#4B90D3#4B90D3

#4B90D3 is a light, vivid cyan. Relative luminance 0.261; OKLCH L 63.8% C 0.123 H 249.7°. Best body text is #000000 at 6.23:1 contrast (WCAG AA passes).

Color values

HEX#4B90D3
RGBrgb(75, 144, 211)
HSLhsl(210, 61%, 56%)
HSVhsv(210, 64%, 83%)
CMYKcmyk(64.5%, 31.8%, 0%, 17.3%)
CIE-LABlab(58.17, -0.95, -40.83)
CIE-LCHlch(58.17, 40.84, 268.67°)
OKLaboklab(63.82% -0.0427 -0.1155)
OKLCHoklch(63.82% 0.123 249.7)
XYZxyz(24.6284, 26.1431, 65.3636)
Luminance0.2615 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#4B90D3 #D38E4B
analogous
#4BD3D2 #4B90D3 #4B4CD3
triadic
#4B90D3 #D34B90 #90D34B
tetradic
#4B90D3 #D24BD3 #D38E4B #4CD34B
square
#4B90D3 #D24BD3 #D38E4B #4CD34B
split-complementary
#4B90D3 #D34B4C #D3D24B
monochromatic
#205383 #2C71B5 #4B90D3 #7CAEDF #ADCDEB

Accessibility & contrast

On white

3.37
#4B90D3 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

6.23
#4B90D3 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4B90D3
6.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##4B90D3#FFFFFF#000000##000000
##4B90D31.003.376.236.23
#FFFFFF3.371.0021.0021.00
#0000006.2321.001.001.00
##0000006.2321.001.001.00

Color blindness preview

Protanopia (red-blind)
#7393D6
Deuteranopia (green-blind)
#6086D2
Tritanopia (blue-blind)
#00A0A8
Achromatopsia (no color)
#8C8C8C

Design tokens & code

CSS
--color: #4b90d3;
/* rgb */ color: rgb(75, 144, 211);
/* oklch */ color: oklch(63.8% 0.123 249.7);
Tailwind
colors: {
  custom: {
    50: '#8ab0e1',
    500: '#4b90d3',
    950: '#000000',
  },
}
SCSS
$custom: #4b90d3;
$custom-light: #8ab0e1;
$custom-dark: #000000;
JSON
{
  "hex": "#4b90d3",
  "rgb": {
    "r": 75,
    "g": 144,
    "b": 211
  },
  "hsl": {
    "h": 209.559,
    "s": 60.714,
    "l": 56.078
  },
  "oklch": {
    "l": 0.63819,
    "c": 0.12309,
    "h": 249.7
  },
  "luminance": 0.26146
}

Semantic roles & 50–950 ramp

primary
#4B90D3
secondary
#D9BCA1
accent
#9344E4
background
#F9FAFD
surface
#F1F4FB
border
#CBCED4
text
#0D1015
muted
#7E7F83

Preview Lab

Preview with #4B90D3

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →

#4B90D3 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva